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发表于 2013-11-7 10:55:22
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回复 12楼 kiwichen 的帖子
很好的测试分析,从分析结果来看,高阻信号差别之大,即使木耳也能分辨。不过我认为不同的拾音器会有不同的结果,因为输出阻抗也是不同的。
其中关于低阻信号的分析结果,和我的分析结果相同。
The audio converter I used has an output impedance (z out) of 50 ohms, which is about the same as an active instrument; and an input impedance (z in) of 1 Meg, which is typical for most amp heads, both vintage and modern. I found that with those impedances, all of the cables had totally identical frequency response--meaning they do exactly the same job of conveying lows, mids, and highs, without variation, from 10 Hz to 20 KHz. |
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